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[bioontology-support] error in R annotator client

Trish Whetzel whetzel at
Mon Mar 18 17:46:50 PDT 2013

Hi Katie, 

I have not seen this error reported previously. The Annotator R Client was developed by Andrew Su,now included in this thread, and may be able to provide more insight on this error.


Trish Whetzel, PhD
Outreach Coordinator
The National Center for Biomedical Ontology
Ph: 650-721-2378

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On Mar 18, 2013, at 6:28 AM, Katie Planey wrote:

> Dear NCBO support,
> I'm getting errors from the NCBO annotator R client running the simple example given on the wiki page (I did input my own API key):
> It looks like
>  for( result in resultNodes ) {
>     localConceptId <- xmlValue(getNodeSet(resultNodes,"./term/localConceptId")[[1]])
>     print( paste( "ID = ", localConceptId ) )
> is causing error because the xmlValue() here returns a length of zero. Has anyone else ever reported this error?
> ___
> Katie Planey, MBA
> Stanford Biomedical Informatics
> Butte Lab |
> _______________________________________________
> bioontology-support mailing list
> bioontology-support at

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